Printing plate and the like



Jan. 10, 1928.

1,655,790 J. KRELL PRINTING PLATE AND THE LIKE Filed Sept. 27, 1,926

cf KreH Patented Jan. 1928.

UNITED STATES PATENT OFFICE.

JOSEPH KRELL, OI BEBLIN-PANKOW, GERMANY.

PRINTING PLATE AND THE LIKE.

Application filed September 27, 1926, Serial No. 188,042, and in Germany October 15, 1925.

My invention relates to printing plates and the like, for instance, of addressing machines, and it is an object of my invention to provide a readily detachable and exchangeable mark for an article of this kind.

To this end I subdivide the printing plate, etc., into a body and a plate, preferably of smaller size than the body, which constitutes the mark, and I connect this mark with the body by resilient means so that the mark is firmly attached to the body on i the one hand but is readily detached and exchanged on the other.

In a preferred embodiment of my invention I subdivide the plate, etc., by a transverse parting line, fold over two parallel edges of the mark or the body so as to form two parallel grooves or pockets along these edges, and secure two springs or two pairs of springs to the parts without the grooves which are adapted to enter the grooves on the other part and, by their reaction, to hold ,the parts firmly together. When a longitudinal pull is exerted on the two parts they will readily separate. I The article according to my invention may be employed for instance for printing the names of employees in a sho The name is then cut out or otherwise ormed on the body of the article and an indication of the department of the shop in which the employee is engaged, is similarly formed on the mark. When the employee is transferred to another department the mark is exchanged.

I am not limited to any size or relative size of the markand the body nor to any definite position of the parting line between the body and the mark. My invention re lates to any size, shape, etc., of the parts and its essential feature is the resilient, firm and readily detachable connection between the two parts constituting the article. Its

two parts are preferably of identical cross;

section and the unit which they constitute is similar to a normal, i. e., undivided plate .or the like from which it is only distinguished by the almost imperceptible parti tion line.

' In the drawings a printing plate for addressing machines is illustrated diagrammatically by way of example.

Fig. 1 is an elevation of the printing plate showing the body and the mark assembled,

' Figs. 2, 3 and 4 are sections on the lines 11-11 and HIT-III of Fig. 1, respectively,

Fig. being a section similar to Fig. 2 but showing only the upper edge of the body on a larger scale,

Fi 5 is an elevation similar to Fig. 1 G0 which is transverse y subdivided, and b is its detachable mark. The longitudinal edges of both parts are folded over at a and 0 so as to form parallel grooves or pockets at and d. The sections of both parts are identical and the parts are only distinguished by the mark 7 6 being shorter than the main part or body a. e and f are laminated springs inserted in the grooves or folded-over edges 0, c of the body a, and c" are depressions in the foldedover ends of the body by which the springs are held. Obviously, any other method of securing the springs in their groove might be employed." The projecting ends ofthe sprmgs are bent slightly apart as shown in Fig. 8. I am not limited to a definite num- 35 her of springs and it will be understood by those skilled in the art that a single spring might also perform the function desired.

The depth of the springs is substantiall equal to t at of the groove springs may be varied as desired.

When a mark is to be attached to a body the mark I) is'pushed against the body a and the springs e, will then enter the grooves at the edges 0, 0' of the mark and, by their reaction, hold the mark firmly to the body as shown in Fig. 1. At the same time, the

mark is readily removed for exchanging when a longitudinal pull is exerted on the mark and the body.

The article is similar to the ordinary undivided plates the partition lines which have been shown slightly apart for the sake of clearness in Fig. 1, constituting in fact a single line.

In the present instance, the body a bears A the name of anemployee, for instance, a

turner, and the mark bears the reference letter of his department, A, with the numeral index 5. When the man is transferred tod and their lengt 90 is substantially equal to the length of the mark I) but obviousl'y'the dimenslons of the another department the body remains un altered but the mark A5 is exchanged for that of the new department, sa F3 Instead of a letter and an in ex, as shown,

' 5 the mark may obviously bear any other indication, for instance, a coloured plate, a symbol, etc.

I claim: A plrinting plate for addressing machines 10 and t e like, including main and detachable parts of equal cross sgrings carried by e sectional width, pairs of and projecting from .the

ges of the main part, the springs of each pair enga ried by t mg one another and guides care detachable part receiving the 15 pairs .of springs and frictionally coacting therewith to maintain the detachable part in position.

In testimony whe reof. I afiix my signature.

' JOSEPH KRELL. 

